63517782987441 has 24 divisors (see below), whose sum is σ = 92327817370880. Its totient is φ = 42078232830816.

The previous prime is 63517782987391. The next prime is 63517782987469. The reversal of 63517782987441 is 14478928771536.

It is a happy number.

63517782987441 is a `hidden beast` number, since 6 + 3 + 5 + 17 + 7 + 82 + 98 + 7 + 441 = 666.

It is not a de Polignac number, because 63517782987441 - 2⁶ = 63517782987377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63517782987441.

It is not an unprimeable number, because it can be changed into a prime (63517782987341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27830986 + ... + 30026643.

Almost surely, 2^{63517782987441} is an apocalyptic number.

It is an amenable number.

63517782987441 is a deficient number, since it is larger than the sum of its proper divisors (28810034383439).

63517782987441 is a wasteful number, since it uses less digits than its factorization.

63517782987441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57858405 (or 57858402 counting only the distinct ones).

The product of its digits is 568995840, while the sum is 72.

The spelling of 63517782987441 in words is "sixty-three trillion, five hundred seventeen billion, seven hundred eighty-two million, nine hundred eighty-seven thousand, four hundred forty-one".